|ARS MICRONET Data for SGP97|
ARS MICRONET DATA FOR SGP97
The climate data described herein are contributed by the Agricultural Research Service, Grazinglands Research Laboratory, El Reno, OK. The data for the SGP97 period (June, July and August) is provided for the 42 ARS Micronet stations in the Little Washita River Watershed. The data consists of accumulated rainfall, relative humidity, air temperature at 1.5 m, solar radiation, and soil temperature at 5, 10, 15 and 30 cm below ground surface. A data quality indicator is provided for each data entry. The climate data is provided in 5-minute increments and the soil temperature data is provided in 15-minute increments. A documentation file provides the necessary information on data units and quality indicators, as well as a disclaimer.
The data documentation file (ars5m.txt) is provided in the main directory: .../pub/spg97/micronet
The climate data is provided in three sub-directories off the main directory: ..../pub/spg97/micronet/97jun, ..../pub/spg97/micronet/97jul, and ..../pub/spg97/micronet/97aug
Each of the above sub-directories contains in excess of 1200 data files that are organized by day and station. The first four digits of each file name represent the month and the day; the middle character 'a' signifies ARS station; and, the last three digits are the station or instrument site number; the file name extension signifies 5 minute data. The LAT.- LONG. coordinates of each station are given in a table and the approximate location is shown on a map of the Little Washita River Watershed. The contents and organization of each file is described in the data documentation file.
Format for the ARS micronet 5-minute data files
This file describes the 5-minute ARS micronet data files. Each data file contains a line each for the version reference string, the 4-letter station ID, the date and a blank line. These are followed by a data-header line and finally the data.
STID - station ID (same as above)
Most parameters are followed by a "Q". This indicates a column for the quality check (QC) character.
g - good (passed QC tests - extremely low probability of error)
The values for the parameters RAIN, RELH, TAIR, SRAD, and FLSV are valid for the 5-minute period ending at the specified time. All other parameters are valid for the 15-minute period ending at the specified time. The 15-minute parameter values are included only every third record. For the other two times the values are set to -999.0.
Note on FLSV
format (x, a4, 2x, i2, x, i2, f8.2, x, a1, 7(f7.1, x, a1), f7.1, i7)
The ARS Micronet data of the Little Washita River Watershed are accepted and used by the recipient upon the express understanding that the ARS and it's employees make no warranties, expressed or implied, concerning the accuracy, completeness, reliability or suitability for any one purpose, and that ARS and it's employees shall be under no liability to any person by reason of any use made thereof.
The ARS requests that the recipient of the ARS Micronet data does not distribute, publish or disseminate the data under the recipient's name without full and up-front acknowledgement of ARS as the source of the data, and that the recipient acknowledges the support and role of ARS in publications that use and are based on the ARS data. The data can be requested from the ARS Micronet Data manager at USDS-ARS, 7207 W. Cheyenne St., El Reno, OK 73036.
SITE LATITUDE LONGITUDE ELEV.